World’s First Printable Electronic Material for PV Cells

October 13, 2014 · Filed Under Green Tech 

Teijin NanoGram Si paste
Teijin has announced the development of world’s first printable electronics material for the local back surface filed (L-BSF) photovoltaic (PV) cell capable of high conversion efficiency. The new NanoGram Si paste contains roughly 20nm-diameter silicon nanoparticles which includes impurities such as boron, phosphorus. A high performance impurity diffused layer can be formed when NanoGram Si paste is printed and heated on a silicon wafer.

An L-BSF PV cell has an insulation or passivation layer in its back. An impurity-diffused layer is attached to the back of the electrode as well as partially on the back of the electrode to diffuse impurities such as boron, phosphorus and aluminum through furnacing or lasering.
World’s First Printable Electronic Material, TEIJIN, L-BSF, NanoGram Si paste, L-BSF PV cell

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